ACR builder

Linux Build	Windows Build	Go Report

ACR Builder is the backbone behind Azure Container Registry Tasks.

It can be used to automate container image patching and execute arbitrary containers for complex workflows.

You can find examples of how to create multi-step tasks here.

Task Schema

For a list of all available YAML properties, please review the Task schema.

Templating

To understand templating and how to provide custom values to your runs, review templates.

Requirements

• Docker

Building

With Docker, execute the following commands from the root of the repository.

Linux:

$ docker build -f Dockerfile -t acb .

Windows:

$ docker build -f Windows.Dockerfile -t acb .

Usage

$ acb --help

NAME:
   acb - run and build containers on Azure Container Registry

USAGE:
   acb [global options] command [command options] [arguments...]

VERSION:
   38f06e5

COMMANDS:
     build      build container images
     download   download the specified context to a destination folder
     exec       execute a task file
     render     render the specified template
     scan       scan a Dockerfile for dependencies
     version    print the client and runtime versions
     getsecret  gets the secret value from a specified vault
     help, h    Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --help, -h     show help
   --version, -v  print the version

Building an image

See acb build --help for a list of all parameters.

$ docker run -v /var/run/docker.sock:/var/run/docker.sock acb build https://github.com/Azure/acr-builder.git

Running a task

See acb exec --help for a list of all parameters.

$ docker run -v $(pwd):/workspace --workdir /workspace -v /var/run/docker.sock:/var/run/docker.sock acb exec --homevol $(pwd) -f templating/testdata/helloworld/git-build.yaml --values templating/testdata/helloworld/values.yaml --id demo -r foo.azurecr.io

Rendering a template locally

$ acb render -f acb.yaml --values values.yaml

If your template uses .Run.ID or other .Run variables, refer to the full list of parameters using acb render --help.

F5 experience on VSCode

You can install delve, and add something like this to your .vscode/launch.json file - and hit f5. The binary executes from under ./cmd/acb, so you can put any Task files that you want to debug.

First, you'd have to run a few commands:

Create a source volume for your workspace (i.e. your context, Dockerfiles, Task yaml files)

sudo docker volume create source
sudo docker volume inspect source
[
    {
        "CreatedAt": "0001-01-01T00:00:00Z",
        "Driver": "local",
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/source/_data",
        "Name": "source",
        "Options": {},
        "Scope": "local"
    }
]
sudo rm -rf /var/lib/docker/volumes/source/_data
sudo ln -s $(pwd) /var/lib/docker/volumes/source/_data

Now, you can add your Dockerfiles or Task files to cmd/acb/ folder.

If your testing Task file contains pulling/pushing stuff off a private repository, then you will have to do the following step. Make sure you are logged in to the repo using docker login. If you don't need that, you can skip the following step.

Create a home volume for Docker to find your registry credentials.

From the cmd/acb/ folder run

sudo docker volume create home
sudo docker volume inspect home
[
    {
        "CreatedAt": "0001-01-01T00:00:00Z",
        "Driver": "local",
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/home/_data",
        "Name": "home",
        "Options": {},
        "Scope": "local"
    }
]
sudo rm -rf /var/lib/docker/volumes/home/_data
sudo ln -s $(HOME)/.docker /var/lib/docker/volumes/home/_data

Create launch.json file in your .vscode folder:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "program": "${workspaceRoot}/cmd/acb",
            "env": {},
            "args": [
               "exec",
               "--homevol",
               "source",
               "-f",
               "./test.acb.yml",
               ".",
                "--id",
                "blah",
                "--registry",
                "samashah.azurecr.io"
            ]
        }
    ]
}

Press F5.